If I make an 'on collision' event and then try to add another on collision condition in the same event, the 'on collision' option isn't available for the second condition. ('or' block)

it seems to work if I make the on collision events separately and then drag them together.

Also bugs you probably already know but I'll note briefly in case you don't: I can't paste events the behavior window since you took out the add button you'll need some instructions like "double tap to add behavior"